If you feel more comfortable to achieve the goal through a GUI way. Here you go:

press Alt+F2

type gconf-editor and <Enter>

from the left pane in the pop-up window, choose app -> nautilus -> preferences

go to the right pane, find out the show_advanced_permissions, check the box on its right

close the window, done.

As you look around, you can change other configurations "under the hood" in the same way. It's said that ubuntu-tweak also lets you do many configurations easily, including enable this "show advanced file permission" feature in Nautilus, but I have not try it.